Dependency on foreign-born workers

Bloomberg reports:

The number of foreign-born workers in the U.S. rose to nearly 27 million in 2016, up about 700,000 from the previous year and representing 16.9 percent of the nation's labor force, according to an annual report from the Bureau of Labor Statistics released Thursday. That's the highest proportion in records going back to 1996, when immigrants accounted for just 10.8 percent of the workforce.

The share has risen steadily over the last six years ...

Do we really need foreigners to do 17% of the work in the USA? We have become dangerously dependent on foreign workers. There is no need for it.